Biblical land rich in gold (5)
I believe the answer is:
ophir
'biblical land rich in gold' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ophir that I've seen before include "Hence quinquireme's cargo (Masefield)" , "Biblical land" , "place of cargo-bearing vessel" , "Quinquireme of Nineveh from distant - (Masefield)" , "Biblical region" .)